audio: add support for routing to/from voice TX/RX paths

Add support for routing voice calls to devices in other audio
HALs by allowing playback and captuer to/from AFE proxy.

Bug: 15520724.

Change-Id: Ia4a4428001ea06f7c7b213db861ec281ebd25174
diff --git a/hal/msm8960/platform.h b/hal/msm8960/platform.h
index 4d137aa..0201772 100644
--- a/hal/msm8960/platform.h
+++ b/hal/msm8960/platform.h
@@ -120,4 +120,8 @@
 #define LOW_LATENCY_CAPTURE_PERIOD_SIZE 240
 #define LOW_LATENCY_CAPTURE_USE_CASE 0
 
+#define AFE_PROXY_PLAYBACK_PCM_DEVICE 7
+#define AFE_PROXY_RECORD_PCM_DEVICE 8
+
+
 #endif // QCOM_AUDIO_PLATFORM_H